尽管卤代烷与氮亲核试剂的亲核置换 (S N 2) 是有机化学教学中最早引入的反应之一,但其实际应用在很大程度上仅限于不受阻碍的(初级)或活化的(α-羰基、苄基)底物. 在这里,我们展示了一种替代胺化策略,其中烷基碘被用作自由基前体而不是亲电子试剂。使用 α-氨基烷基自由基可以通过卤素原子转移将碘化物有效地转化为相应的烷基自由基,而铜催化在室温下组装sp 3 C-N 键。该过程提供 S N2 样的可编程性以及在几种密集功能化药物的后期功能化中的应用证明了其在制备有价值的N-烷基化药物类似物方面的实用性。
Substituted piperidinamines as somatostatin receptor subtype 5 (SSTR5) antagonists
申请人:Hoffmann-La Roche Inc.
公开号:US07754744B2
公开(公告)日:2010-07-13
This invention is concerned with compounds of the formula
and pharmaceutically acceptable salts thereof. The invention further relates to pharmaceutical compositions containing such compounds, to a process for their preparation and to their use for the treatment and/or prevention of diseases which are associated with the modulation of SST receptors subtype 5.
PHENYL, PYRIDINE, QUINOLINE, ISOQUINOLINE, NAPHTHYRIDINE AND PYRAZINE DERIVATIVES
申请人:Binggeli Alfred
公开号:US20100222350A1
公开(公告)日:2010-09-02
This invention is concerned with compounds of the formula
and pharmaceutically acceptable salts thereof. The invention further relates to pharmaceutical compositions containing such compounds, to a process for their preparation and to their use for the treatment and/or prevention of diseases which are associated with the modulation of SST receptors subtype 5.
Substituted piperidines as somatostatin receptor subtype 5 (SSTR5) antagonists
申请人:Hoffman-La Roche Inc.
公开号:US08026255B2
公开(公告)日:2011-09-27
This invention is concerned with compounds of the formula
and pharmaceutically acceptable salts thereof. The invention further relates to pharmaceutical compositions containing such compounds, to a process for their preparation and to their use for the treatment and/or prevention of diseases which are associated with the modulation of SST receptors subtype 5.